[sdiy] filters, state variable in particular

[Roy J. Tellason]

On Sunday 18 December 2005 05:22 pm, you wrote:
> Roy...
>
> What planet have you been VACATIONING on ???   :^P

Let me explain it to you a little...

I got into this stuff back in the 1970s,  and had to figure it out as I went 
along.  Started with organ repair in '75,  and worked for some music stores, 
etc. in the NYC area.  I also did the same somewhat since then,  culminating 
in me opening a retail repair facility ("T & D Tech Services") which ran from 
1985 to 1992.  We did warranty service for a whole bunch of brands of stuff,  
but there were also other brands I never saw,  or hardly ever,  and had no 
service data on when I did.

Since 1992,  I've not done *ANYTHING* with this stuff.  Encountering this list 
was a lot of fun,  but aside from reading it I haven't done much besides.  
Just about all of my service manuals are "elsewhere" and won't be handy to me 
until I go and get them,  and I don't have room for them just now anyway.  Or 
the time to review all of that stuff,  which didn't cover nearly the list of 
makes / models you mention here.

So if I'm a little ignorant of the applicability of something,  don't mind me 
too much -- ignorance is fixable,  which is why I asked (by contrast with 
stupidity,  which seems to be forever,  but that's a whole 'nother thread).

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin